<template>
  <div>


  <div class="search">
    <input class="search-input" v-model="keyword" type="text" placeholder="输入城市名或拼音" />
  </div>
  <div class="search-content" ref="search" v-show="keyword">
      <ul >
        <li class="search-item border-bottom" v-for="item in list" :key="item.id" @click.prevent="handleCityClick(item.name)">
        {{item.name}}
        </li>
        <li class="search-item border-bottom" v-show="!list.length">
          没有找到匹配数据
        </li>
      </ul>
  </div>
  </div>
</template>

<script>
  import Bscroll from 'better-scroll'
    export default {
        name: "Search",
      props:{
        cities:Object
      },
      data(){
          return{
            keyword:"",
            list:[],
            timer:null
          }
      },
      computed:{
        hasNoData(){
          return !this.list.length
        }
      },
      methods:{
        handleCityClick(item){
         this.$router.push("/")
          this.$store.commit("changCtiy",item)
        }
      },
      watch:{
          keyword(){
            //函数节流
            if(this.timer){
              clearTimeout(this.timer)
            }
            this.timer=setTimeout(()=>{
              if(!this.keyword){
                this.list=[]
                return
              }
              const result =[]
              for(let i in this.cities){
                this.cities[i].forEach((value)=>{
                  console.log(value)
                  if(value.name.indexOf(this.keyword)>-1 ||value.spell.indexOf(this.keyword)>-1 ){
                    result.push(value)
                  }
                })
                this.list=result
              }
            },100)

          },

      },
      mounted() {
          this.scroll =new Bscroll(this.$refs.search)
      }
    }
</script>

<style lang="stylus" scoped>
  .search
    height: .72rem
    /*padding: 0 .1rem*/
    background: #25a4bb
    z-index 1000
    display flex
    .search-input
      box-sizing: border-box
      width: 100%
      height: .62rem
      padding: 0 .1rem
      line-height: .62rem
      text-align: center
      border-radius: .06rem
      color: #666
      z-index 1000
  .search-content
    overflow hidden
    position absolute
    top 1.58rem
    left 0
    right 0
    bottom 0
    background #fff
    z-index 1
    .search-item
      line-height: .62rem
      padding-left: .2rem
      background: #fff
      color: #666
</style>
